[GIS] Categorization with multiple values- QGIS 2.18

Question

I'm trying to represent 2 columns in polygon layer. I've tried to do it with the rule-based style but didn't understand how to do it. This is the attribute table of the polygon:

I've tried to use this expression:

but with no succses.

In ArcGIS I can do it with this option, so i can see in the legend both length and area data:

How can i do it in QGIS 2.18?

I also read:

• QGIS rule-based categorization with multiple variables
• QGIS: Categorized styling – by multiple columns

but didn't find any suitable answer.

Answer 1

Well, if i understood your question the answers is this:

You have to use "GEOMETRY (AREA) || GEOMETRY (PERIMETER)".

Step_1 - Layer > Properties > Style > Categorized > E = Insert Expression ( AREA || PERIMETER)> ok... (In this step you can add more Geometry if you have in your table)

Step_2 - classify > apply > Ok...

Step_3 - Legend (On Layers Panel).